8224 N/B Maintenance
8224 N/B Maintenance
109
AC
Power
Battery
(B)ADINP
(B)DVMAIN
(B)+PWR_VDDIN
BATT
BAT_T
BAT_V
BAT_C
BAT_D
BPJ501
BPF2
BPL7
BPL8
BPR27
BPQ5
BPD5
BPU2
Where from
power source problem
(first use AC to
power it)?
Check following parts and signals:
Parts: Signals:
Check following parts and signals:
Parts: Signals:
No Power
Is the
notebook connected
to power (either AC adaptor
or battery)?
Connect AC adaptor
or battery.
Replace the faulty AC
adaptor or Battery.
Power
OK?
No
Yes
No
Try another known good
battery or AC adapter.
Power
OK?
Yes
Try another known
good daughter BD.
Is the
M/B and daughter
BD connected
properly?
No
Replace the faulty
daughter BD.
Board-level
Troubleshooting
Replace
Motherboard
No
Connect AC adaptor
or battery.
Yes
Yes
PJ501
PF501
PL504
PQ502
PL501
PD503
PU501
PU504
When the power button is pressed, nothing happens, no fan activity is heard and power indicator is not light up.
8.1 No Power-1
MiTac Secret
Confidential Document